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J/ApJ/314/493       Boo Void survey                       (Kirshner+, 1987)

A survey of the Bootes Void. Kirshner R.P., Oemler A.Jr, Schechter P.L., Shectman S.A. <Astrophys. J. 314, 493 (1987)> =1987ApJ...314..493K (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Redshifts Keywords: galaxies: clustering - galaxies: redshifts Abstract: In an earlier paper we inferred, from the distribution of galaxy redshifts in three small fields ∼30° apart, the existence of a 106Mpc3 void in the distribution of galaxies in the constellation of Bootes. In this paper, we describe a redshift survey undertaken to test that hypothesis. Galaxies were selected by eye from 283 small fields distributed between the three original fields, and redshifts were measured for 239 of them. We confirm the existence of a large, roughly spherical void, of radius 62Mpc, centered at α=14h50, δ=+46°, v=15500km/s. The low density of this region is of high statistical significance and does not appear easily reconcilable with any of the popular models for the growth of structure in the universe. This void does contain some unusual galaxies characterized by strong, high-excitation emission spectra, but not in sufficient numbers to compensate for the absence of more usual objects. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 30 283 Survey fields table2.dat 36 300 The galaxy sample
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Field Field number 6- 7 I2 h RAh Right ascension (1950) 9- 10 I2 min RAm Right ascension (1950) 12- 13 I2 s RAs Right ascension (1950) 16 A1 --- DE- Declination sign (1950) 17- 18 I2 deg DEd Declination (1950) 20- 21 I2 arcmin DEm Declination (1950) 23- 24 I2 arcsec DEs Declination (1950) 26- 30 F5.2 mag Vlim Limiting V magnitude
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right ascension (1950) 4- 5 I2 min RAm Right ascension (1950) 7- 8 I2 s RAs Right ascension (1950) 10 A1 --- DE- Declination sign (1950) 11- 12 I2 deg DEd Declination (1950) 14- 15 I2 arcmin DEm Declination (1950) 17- 18 I2 arcsec DEs Declination (1950) 21- 23 I3 --- Field Field number 25- 29 F5.3 --- Rank Fractional rank (1) 31- 35 I5 km/s cz ? Heliocentric velocity 36 A1 --- r_cz [ab] Origin of cz (2)
Note (1): Fractional rank of brightness, defined as that the 283d galaxy has a rank of 1.00. Note (2): a: from CfA (Cat. VII/193) survey b: from RC2 (Cat. VII/112)
History: Prepared via OCR at CDS.
(End) James Marcout, Patricia Bauer [CDS] 31-May-1999
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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